Home / 85,913.65-128,867.64-35,310.93

Finding the Fourth Proportional to 85,913.65, 128,867.64 and 35,310.93

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Solution

The fourth proportional to 85,913.65, 128,867.64 and 35,310.93 is: 52,965.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,913.65 : 128,867.64 = 35,310.93 : x
  2. Step 2: Convert to fraction form
    85,913.65/128,867.64 = 35,310.93/x
  3. Step 3: Cross multiply
    85,913.65x = 128,867.64 × 35,310.93
  4. Step 4: Simplify right side
    85,913.65x = 4,550,436,215.31
  5. Step 5: Solve for x
    x = 4,550,436,215.31/85,913.65
  6. Step 6: Final answer
    x = 52,965.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.